期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2017
卷号：6
期号：9
页码：1494-1498
出版社：Shri Pannalal Research Institute of Technolgy
摘要：This paper addresses briefly the significant benefits of two stage median filtering techniques that detect and remove the noise efficiently. Noise usually occurs due to the transmission error or signal interference. Noises like impulse noise, Gaussian white noise, Poisson noise etc., that affect the image quality and fine details. Two stage filtering concept for de-noising the images usually has detection and filtering stage. Initially, this type of filters detects the noise candidate pixel at the first stage and alters or modifies the detected noisy pixels at the second stage. This process improves the quality of image and maintains the non-noisy pixels as it is. In this comprehensive survey, various kinds of two stage median filter and noise models are discussed in detail.
关键词：Noise removal; Noise detection; Median filter; Impulse noise; Signal interference.
